200 



AHscellaneous. 



The Pelagic Fauna of the LaTces of Auvergne. 

 By M. Jules Richard. 



M. Jules Richard has printed a tabular statement of the pelagic 

 fauna of the Lakes of Auvergne which is of much interest in con- 

 nexion with the increased attention now being paid to the inhabi- 

 tants of the deeper parts of lakes in Europe and elsewhere. It is as 

 follows : — 



Names of Species. 



(The pelagic species are marked 



with an asterisk.) 



*Daplinia longispiua, Lcydiy 



*Hyalodaphnia cucullata, Sars, var. 

 cata, Kiirz 



Polyphemus pediculus, de Oeer . . . . 

 *Dapliuella Brandtiana, Fischer- . . . . 

 *Holopedium gibbeium, Zaddach . . . . 



Sida crystaliiua, O. F. Miiller 



*Ceriodaphnia pulchella, Sars 



*Bo3mina longirostris, O. F. Miiller . . 



Alona affinis, Leydiy 



Acroperus leucocephalus, Koch . , . . 



Chydorus sphsericus, Jiirine 



*Diaptomus cferuleus, Fischer 



*Oyclops strenuus, Fischer 



coronatus, Clans 



*Ceratium longiconie, Perty 



*Conochiiu3 volvox, Ehreyiherg 



*Anuraea loiigispiua, Kellicott 



cochlearis t, Gosse 



curvicoruis f, Ehrenberg 



*Asplanchna helvetica, Imhof 



* Girodi, de Guerne 



Atax crassipes, O. F. Miiller 



Axoua versicolor, O. F. Miiller . . . . 



Nesgea reticulata, Kramer 



rotunda, Kramer 



api- 



^ 



O 



***** 

 *** 



*** 

 * 



* 



H 



* 



*** 



** 



* 



« 



***** 



** 



* 



The asterisks placed in the columns indicate by their number the rela- 

 tive rarity or abundance of the species. 



t These Annrcece were found in the stomachs of Asplanchna; the 

 author has rarely found them free. This may be due to the meshes of 

 the net used not being fine enough. 



